From a79b03ce6fef6909ebb6c1d6b069d56da0c7a0c4 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ulf=20M=C3=B6ller?= Date: Thu, 29 Apr 1999 16:07:56 +0000 Subject: [PATCH] Compare with BN_mod_exp_simple, too. --- crypto/bn/exptest.c | 33 ++++++++++++++++++++++++--------- 1 file changed, 24 insertions(+), 9 deletions(-) diff --git a/crypto/bn/exptest.c b/crypto/bn/exptest.c index 08039313a2..9e4ae91d20 100644 --- a/crypto/bn/exptest.c +++ b/crypto/bn/exptest.c @@ -75,7 +75,7 @@ int main(int argc, char *argv[]) BIO *out=NULL; int i,ret; unsigned char c; - BIGNUM *r_mont,*r_recp,*a,*b,*m; + BIGNUM *r_mont,*r_recp,*r_simple,*a,*b,*m; ERR_load_BN_strings(); @@ -83,6 +83,7 @@ int main(int argc, char *argv[]) if (ctx == NULL) exit(1); r_mont=BN_new(); r_recp=BN_new(); + r_simple=BN_new(); a=BN_new(); b=BN_new(); m=BN_new(); @@ -127,23 +128,37 @@ int main(int argc, char *argv[]) ERR_print_errors(out); exit(1); } - - if (BN_cmp(r_mont,r_recp) != 0) + + ret=BN_mod_exp_simple(r_simple,a,b,m,ctx); + if (ret <= 0) { - printf("\nmont and recp results differ\n"); + printf("BN_mod_exp_simple() problems\n"); + ERR_print_errors(out); + exit(1); + } + + if (BN_cmp(r_simple, r_mont) == 0 + && BN_cmp(r_simple,r_recp) == 0) + { + printf("."); + fflush(stdout); + } + else + { + if (BN_cmp(r_simple,r_mont) != 0) + printf("\nsimple and mont results differ\n"); + if (BN_cmp(r_simple,r_recp) != 0) + printf("\nsimple and recp results differ\n"); + printf("a (%3d) = ",BN_num_bits(a)); BN_print(out,a); printf("\nb (%3d) = ",BN_num_bits(b)); BN_print(out,b); printf("\nm (%3d) = ",BN_num_bits(m)); BN_print(out,m); + printf("\nsimple ="); BN_print(out,r_simple); printf("\nrecp ="); BN_print(out,r_recp); printf("\nmont ="); BN_print(out,r_mont); printf("\n"); exit(1); } - else - { - printf("."); - fflush(stdout); - } } CRYPTO_mem_leaks(out); printf(" done\n"); -- 2.25.1